Let I(n,r)={x^n (a+bx)^r dx where n is a positive integer and r is real but no an integer.Prove that (n+r+1)bI(n,r)=x^n (a+bx)^r+1 - naI(n-1,r)
PS.{ <---這是In既符號
收錄日期: 2021-04-26 18:37:57
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